Why does the window film come off?

Firstly make sure you remove the protective backing film, secondly wipe the glass clean and spray with enough water to improve adhesion.

Window film privacy doesnt fit the window very well. Do you have any suggestions?

If the privacy window film does not adhere well to the window, make sure you thoroughly remove any dust or residue from the surface. Adding a little soapy water during installation can make it easier to install.

Is this adhesive stripe frosted window film reusable? Will it leave traces of glue when I peel it off?

Yes, reusable. No adhesive is needed, water, squeegee and knife are the only tools you need to use. Its easy to apply and remove, and wont leave any residue on the glass.

Can I also apply the window film in rented apartments?

In any case! The window film is adhesive-free, so it ocan be removed easily and without leaving any residue, evenwhen moving

How is the window film best applied?

Simply clean the window thoroughly, remove the backing film from the window film, spray both the window and the film with a mixture of water and dish soap, use a squeegee to push bubbles outwards.